It is a legal tender in their country, so I guess it wouldn't hurt them if they buy more (unless they decide to sell it when at loss). As long as they are holding and aren't risking public funds that were supposed to go somewhere else, they are doing the right thing. Sadly, I have seen lots of "posts" and news articles where they were mocking the president for making bitcoin a legal tender and buying more during the dip. Apparently he is destroying the economy and the country by gambling with bitcoin.